Hotspot

Hotspot is another side to examine, whether the ball has grazed or not either it be the bat or the pad. The snicko is not considered to be accurate enough so hotspot was introduced in cricket.

It makes use of infra red imaging system and tracks down the ball imagery with its temperature, as to the balls impact on the bat and makes a bright spot on the surface graphically which helps the on-field umpire to arrive at a decision.

This bright arraying is possible by making use of two camera positioned at the either end of the ground, through which it displays the contact spot on bat or pad or both or any other area.

It uses a subtraction technique of monochrome negative frames into a computer for finding out the ball contact precisely.

Hawk-Eye

The trajectory of the ball as to its swing by pace or spin in or out everything is captured by six or seven cameras that are stationed alongside the ground. Which then combine the imagery to produce a three dimensional view of the ball and its track.

The over in a balls are tracked and analyzed after the game, it is used mostly in cases of leg before wicket to check whether the ball topple toppled the bails or snitched any part of wicket.

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